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Our Members Asked:

Do companies have to test supplements before they are sold?

Reviewed and edited by Tod Cooperman, M.D. cooperman.png

Initially Posted: 03/22/2012 | Last Updated: 08/08/2017

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Answer:

Under the law, manufacturers of vitamin, mineral, and other supplement are required to test the identity and quality of ingredients that go into their products, but some don't. The FDA issues Warning Letters to companies caught not complying. These letters get posted in the Warnings section on ConsumerLab.com.

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